Papers by Keyword: Weather Resistance

Abstract: Aim of this study is to investigate the influence of welding temperature and weathering on bond strength of induction welded hybrid joints made of steel and thermoplastic fiber reinforced polymer composites (TP-FRPC). The used TP-FRPC are continuous glass fiber reinforced-polyamide 6 (PA6), -polypropylene (PP), -polycarbonate (PC) and-polyphenylenesulfide (PPS). The metal sheets are mild steel (1.0338 and 1.0330). The surface pretreatments of the metal sheets are either laser structuring in line pattern, perpendicular to the load direction, or two different types of functional coating adhesives (Köratac HL 400 and Köratac HL 403) currently used in coil-coating processes. First the process parameters were optimized for each material combination by investigating the bond strength at different welding temperatures. In a second step, for each material combination, specimens were welded using the determined welding temperatures with the highest bond strength in order to investigate the influence of weathering on hybrid joints. Therefore the cataplasma test (DIN EN 13523-27: 2009) as well as alternating climatic change (BMW PR 308.2) were used.

Abstract: The paper deals with the issues of restoration of the wooden architecture monuments in Western Siberia by using the technology of wood modification. In order to modify the elements of the wooden buildings under restoration the authors studied hydrophobisators based on organic-silicone compounds. We have also defined the compositions and technologies of wood modification at the restoration of the wooden architecture monuments. Thermally modified wood may be used for restoration and replacement of the base courses of the wooden buildings.

Abstract: Modifying of the surface of pine wood with aqueous solutions boron-nitrogen compounds was empirically found to provide a 100% biological stability of wood for at least 20 years. Durability of the protective effect of the modifiers developed is due to the formation of hydrolytically stable compounds on the surface of the wood.

Abstract: A new surface treatment technology for the aluminum alloys that exhibits not only high corrosion and weather resistance but also good mirror luster has been developed. By performing electrolytic permeation, the improved corrosion resistance and weather resistance while maintaining a high mirror luster was achieved for an aluminum alloy A2014-T6. The high strength aluminum alloys featuring high corrosion and weather resistance have been available for industrial products. Then the claim number of the products by A2014 T6 aluminum alloy has been reduced sharply to almost zero level in comparison with a past. A few applications and the development of the processing in industrial scale in A2014 T6 aluminum alloy will be presented.